Earth-auger.



D. WILSON.

EARTH AUGER. APPLICATION FILED APR.29, 1912.

1,074,304. Patented Sept. 30, 1913.

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WITNESSES:

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D. WILSON.

EARTH AUGER.

APPLICATION FILED APR.29, 1912.

Patnted Sept. 30, 1913.

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INVENTOR. $5

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COLU BIA PLANOGRAPH c0" WASHINGTON. u. c.

1), WILSON.

EARTH AUGBR.

APPLICATION FILED APLZQ, 1912.

Patented Sept. 30, 1913.

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INVENTOR. 54m

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UNITED STATES ATENTOFF1QE.

DAVID WILSON, OF KANSAS CITY, MISSOURI.

Specification of Letters Patent.

EARTH-AUGER.

Patented Sept. 30, 1913.

Application filed April 29, 1912. Serial No. 693,794.

To all whom it may concern Be it known that I, DAVID WILSON, a citizenof the United States, and a resident of Kansas City, in the county ofJackson and State of Missouri, have invented-certain new and usefulImprovements in Earth- Augers, of which the following is aspecification.

My invention relates to improvements in earth augers.

It relates particularly to the type of earth augers in which twoconveyer belts are d sposed at opposite sides of and follow a drillshaft,

One object of my invention is to provide a simple, durable and eflicientconstruction which will permit the excavated dirt to be dumped into asingle chute at one side of the machine- A further object of myinvention is to provide a novel construction in which the two conveyerbelts will occupy a minimum of space transversely relatively to thecircle cut by the bit attached to the drill shaft.

Other novel features of my invention are hereinafter fully; describedand claimed.

In the accompanying drawings which illustrate the preferred form of myinvention, Figure 1 is a side elevation of a machine provided with myinvention. Fig. 2

e is a front elevation of the same, with the discharge chute removed.Fig. 3 is'a plan view of the 7 guide frame and parts con-v nectedtherewith. Fig. 4 is a horizontal section on the line ab of Fig. 6. Fig.5 is an elevation of the lower part of the auger, showing it inoperative position, a well lining section being shown in verticalsection. Fig. 6 is a vertical section on the line 'cd of Fig. 3. Fig. 7is a vertical section on the line ef of Fig. 3.

Similar reference characters designate similar parts in the difierentviews.

1 designates a truck having mounted movably thereon a platform 2 to theforward end of which is secured the lower ends of two vertical guideposts, 3, the upper ends of which are connected by across beam 4.Vertically slidably mounted between the posts 3 is a slidalole head 5 inwhich is rotatively mounted a drill shaft 6 to the lower end of which issecured a bit 7 of any suitable type. I

At opposite sides of the drill shaft 6 are rotatively mounted in thehead 5 two horizontal sectional shafts 8, the axes of which.

with buckets 11, and the lower ends of A which belts are respectivelymounted on sprockets 12 rotatively inounted on horizontal pins 13mounted at opposite sides of the drill shaft 6 in a block 14 secured tothe lower end of a vertical tube 15 in which the drill shaft isrotatable, and which has its upper end secured by a sleeve 16 to aremovable portion 17 of the head 5.

The upper end of the drill shaft 6 is square and fitted in a squaresocket in the lower end of a vertical shaft 18 which is rotativelymounted in the head 5 and has secured to it a spur gear wheel 19 whichmeshes with a pinion 20 longitudinally movable on a vertical shaft 21the upper end of which is rotatively mounted in a bracket 22 secured tothe cross beam 4 and the lower end of which is stepped in a block 23secured to the platform 2. The pinion 20 has a feather 24 which isslidable in a vertical groove 25 provided in the shaft 21. A spur gearwheel 26 is similarly secured on the shaft 21 and meshes with the spurteeth on the periphery of a gear wheel 27 which is rotat-ive on theshaft18 and is provided with internal .teeth which mesh with a pinion 28secured to a vertical shaft 29 to which is secured a bevel gear wheel30, which meshes with another bevel gear wheel 31 secured to one of thehorizontal shafts 8. The other shaft 8 has secured to it a bevel gearwheel 32 which meshes with a bevel gear wheel 83 secured to a verticalshaft 34, to which is secured a pinion 35 which meshes with the spur orexternal teeth of the gear wheel 27. The shafts 29 and 34 are rotativelymounted in the head 5.

When the shaft 21 is rotated the drill shaft 6 is rotated by means ofthe pinion 20, gear wheel 19 and shaft 18, and the two conveyer beltsare driven in like direction by means of the sprockets 9, shafts 8,bevel gear wheels 31, 32, 30 and 83, shafts 29 and 24, pinions 28 and35, and gear wheels 27 and 26 just described.

Any suitable means may be employed for rotating the shaft 21 as, forexample an engine 36 .mounted on the platform 2 and having suitabledriving mechanism connecting it with the shaft 21.

operated by the engine 36.

In the operation of my invention, as the drill shaft 6'is driven andlowered, the conveyer belts 10 will be driven in a like direction by themechanism described, the buckets 11 will pick up the dirt dug up by thebit 7 and carry it upwardly where it may be delivered by the bucketsinto a single chute 37, shown in Fig. 1, and which is secured to thehead 5. By driving the belts 10 in the same direction but one chute isneeded to receive the discharged dirt. By having the axes of thesprockets 9 in the same plane as the drill shaft 6, the belts may becarried farther into the hole made by the bit 7, than would be the caseif the shafts 8 were at one side of the plane of the drill shaft.

The manner of placing the tubular linings, one of which is shown in Fig.5 and designated by 38, is fully described in the application aforesaid.

I do not limit my invention to the specific structure shown anddescribed, as modifications, within the scope of the appended. claims,may be made without departing from the spirit of my invention.

Having thus described my invention, what I claim and desire to secure byLetters Patent, is

1. In an earth auger, a drill shaft, two sprockets disposed at oppositesides of the drill shaft and having their axes located in a plane whichlongitudinally bisects the drill shaft, two conveyer belts respectivelydriven by said sprockets, a gear wheel having spur teeth and internalteeth, means actuated respectively by said spur and internal teeth fordriving said belts in a like direction, and means for actuating saidgear wheel and simultaneously actuating said drill shaft.

2. In an earth auger, a drill shaft, two sprockets disposed at oppositesides of said drill shaft and having their axes in a plane whichlongitudinally bisects the drill shaft, two conveyor belts respectivelydriven by said sprockets, a gear wheel having spur and internalteeth,two pinions respectively meshing with said two sets of teeth, meansrespectively actuated by said two pinions for driving said belts in alike direction,

and means for actuating the drill shaft and driving said gear wheel.

3. 111 an earth auger, a drill shaft, two

sprockets disposed at opposite sides of said drill shaft, two conveyerbelts respectively driven by said sprockets, a gear wheel having twosets of teeth disposed internally.

and externally respectively, two pinions respectively meshing with saidtwosets of teeth, means for simultaneously actuating the drill shaft anddriving the gear wheel, and means by which said pinions respectivelydrive said sprockets.

4. In an earth auger, a drill shaft, two

conveyer belts disposed-at opposite sides of said drill shaft, a gearwheel having two sets of teeth disposed internally and externallyrespectively two pinions respectively meshing with said two sets ofteeth, means actuated by said pinions respectively for respectivelydriving said conveyer belts,

and means for simultaneously actuating the drill shaft and drivingsaidgear wheel.

5. In an earth auger, a drill shaft, two

conveyer belts disposed at opposite sides of said drill shaft, a gearwheel having two sets of teeth disposed internally and externallyrespectively, two pinions respectively meshing with said two sets ofteeth, means actuated by said pinions for simultaneously driving saidtwo conveyer belts in a like direction, and means for simultaneouslyaetuating the drill shaft and driving said gear wheel.

6. In an earth auger, a drill shaft, two 7 sprockets, two horizontalshafts secured re:

spectively to said sprockets, two conveyer belts respectively driven bysaid sprockets, a gear wheel having two sets of teeth disposedinternally and externally'respectively,

two pinions respectively meshing with said two sets of teeth, meansactuated by said' pinions for respectively driving said horizontalshafts simultaneously, and means for actuating the drill shaft andsimultaneously driving said gear wheel.

7. In an earth auger, a drill shaft, two horizontal shafts disposed atopposite sides of the drill shaft and having their axes located in aplane which bisects the drill shaft longitudinally, two sprocketsrespectively secured to said horizontal shafts, two conveyer beltsrespectively driven by said sprockets, a gear wheelhaving two sets ofteeth disposed internally and externally respectively, two pinionsrespectively meshing with said twosets of teeth, means actuated I twosprockets secured to said horizontalshafts respectively, two conveyerbelts respectively' driven by said sprockets, a gear wheel having twosets of teeth disposed in- In testimony whereof I have signed myternally V and externally respectively, two name to this specificationin the presence 10 pinions respectively meshing with said two of twosubscribing witnesses.

sets of teeth means actuated by said pinions for respectively drivingsaid horizontal DAVID WILSON shafts, and means for actuating the drillWitnesses:

. shaft and simultaneously driving said gear WARREN D. HoUsE,

Wheel. E. B. HOUSE.

copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. G.

